Question

f(x)=-x^2+3x Знайти f(-4), f(1/3)

Answer 1

f(-4) = -(-4)^2 + 3(-4) = -16 - 12 = -28

f(1/3) = -(1/3)^2 + 3(1/3) = -1/9 + 1 = 8/9